Výsledky vyhledávání

Report

Thermodynamic Compressibility of a Two-Dimensional Electron System: Signature of a Droplet State

Autor: Dultz, S. C., Alavi, B., Jiang, H. W.

We have used a field-penetration method to measure thermodynamic compressibility of a moderately interacting two-dimensional electron system ($r_{s}$ $\approx$ 0.5-3) in a three terminal GaAs/AlGaAs device, fabricated with an epitaxial lift-off techn

Externí odkaz: http://arxiv.org/abs/cond-mat/0210584

Zobrazit plný text záznamu

Report

Compressibility of a two-dimensional hole gas in tilted magnetic field

Autor: Rahimi, Maryam, Sakr, M. R., Kravchenko, S. V., Dultz, S. C., Jiang, H. W.

Publikováno v: Phys. Rev. B 67, 081302(R) (2003)

We have measured compressibility of a two-dimensional hole gas in p-GaAs/AlGaAs heterostructure, grown on a (100) surface, in the presence of a tilted magnetic field. It turns out that the parallel component of magnetic field affects neither the spin

Externí odkaz: http://arxiv.org/abs/cond-mat/0206068

Zobrazit plný text záznamu

Report

Universal Quantum Gates for Single Cooper Pair Box Based Quantum Computing

Autor: Echternach, P., Williams, C. P., Dultz, S. C., Delsing, P., Braunstein, S. L., Dowling, J. P.

Publikováno v: Quantum Information and Computation, Vol. 1, Special (2001) 143-150

We describe a method for achieving arbitrary 1-qubit gates and controlled-NOT gates within the context of the Single Cooper Pair Box (SCB) approach to quantum computing. Such gates are sufficient to support universal quantum computation. Quantum gate

Externí odkaz: http://arxiv.org/abs/quant-ph/0112025

Zobrazit plný text záznamu

Report

Thermodynamic Signature of a Two-Dimensional Metal-Insulator Transition

Autor: Dultz, S. C., Jiang, H. W.

We present a study of the compressibility, K, of a two-dimensional hole system which exhibits a metal-insulator phase transition at zero magnetic field. It has been observed that dK/dp changes sign at the critical density for the metal-insulator tran

Externí odkaz: http://arxiv.org/abs/cond-mat/9909314

Zobrazit plný text záznamu

Report

Absence of Floating Delocalized States in a Two-Dimensional Hole Gas

Autor: Dultz, S. C., Jiang, H. W., Schaff, W. J.

By tracking the delocalized states of the two-dimensional hole gas in a p-type GaAs/AlGaAs heterostructure as a function of magnetic field, we mapped out a phase diagram in the density-magnetic-field plane. We found that the energy of the delocalized

Externí odkaz: http://arxiv.org/abs/cond-mat/9808145

Zobrazit plný text záznamu